Yellowstone’s Black Diamond Pool erupts, sending mountains of steam and debris into air
The Black Diamond Pool in Yellowstone National Park erupted on Wednesday, blasting steam and muddy debris hundreds of feet into the air.
This marks the second eruption at the pool within a week, following another explosion on Tuesday.
According to the U.S. Geological Survey, the latest event may rank among the most powerful eruptions recorded at the site. In a social media update, the agency noted that it could be the largest outburst since a significant 2024 explosion, underscoring the ongoing hydrothermal dangers present in Yellowstone.
On July 23, 2024, a major hydrothermal blast at Black Diamond Pool destroyed part of a nearby boardwalk and forced visitors to flee. Fortunately, no injuries were reported.
Since that incident, the pool has continued to show intermittent activity. Smaller eruptions have occurred from time to time, occasionally sending muddy water several dozen feet into the air. So far this year, three additional eruptions have been recorded, though Wednesday’s event was the first to take place during daylight without the view being obstructed by ice.
Located in Biscuit Basin, Black Diamond Pool is recognized for its cloudy blue waters. It formed after an earthquake in July 2006, which triggered several days of explosive activity.
The surrounding area is typically made up of soft mineral deposits and limited plant life. Water flowing out from the pool creates branching channels filled with colorful thermophilic organisms in shades of orange and green.
With an average temperature of about 148.5 degrees Fahrenheit year-round, the pool remains a well-known attraction for visitors exploring Yellowstone.
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